ESTUDIO DE LA EFICIENCIA Y LA TEMPERATURA DE UNA CELDA FOTOVOLTAICA PARA CONDICIONES AMBIENTALES DE LA CIUDAD DE TUXTLA GUTIÉRREZ (STUDY OF THE EFFICIENCY AND TEMPERATURE OF THE PHOTOVOLTAIC CELL FOR ENVIRONMENTAL CONDITIONS OF TUXTLA GUTIÉRREZ CITY)
Resumen
Las condiciones atmosféricas cambian durante el día. Por esta razón el objetivo es estudiar la eficiencia (η) y la temperatura de la superficie del panel fotovoltaico ( T_panel), en función de las variables climáticas 〖(G,T〗_a V_w,Ø). También, se estudia la irradiancia en función del voltaje en circuito abierto, y la corriente en corto circuito G=f(V_oc,I_sc). Los resultados muestran que la eficiencia depende principalmente de la irradiancia y la temperatura, y la función es no lineal. El viento y la humedad tienen menor impacto en la eficiencia. La irradiancia impacta en la corriente de corto circuito de forma lineal. La temperatura tiene impacto en (I_sc), pero es menor y no lineal. La irradiancia y la temperatura tienen impacto no lineal en el voltaje de circuito abierto. Se redujo n=f(V_oc,I_sc,G,FF,A,T_panel) al modelo no lineal V_oc=f(G,〖 T〗_panel). El impacto del proyecto consiste en la caracterización de la eficiencia eléctrica, en función de las variables climáticas.
Palabras Clave: Celda fotovoltaica, Eficiencia, Irradiancia.
Abstract
Atmospheric conditions change during the day. For this reason, the objective is to study the efficiency (η) and the surface temperature of the photovoltaic panel ( T_panel), depending on the climatic variables 〖(G,T〗_a V_w,Ø). Also, the irradiance is studied as a function of the open circuit voltage and the short circuit current G=f(V_oc,I_sc). The results show that the efficiency mainly depends on the irradiance and temperature, and the function is nonlinear. Wind and humidity have less impact on efficiency. Irradiance impacts the short circuit current linearly. Temperature has an impact on (I_sc), but it is minor and non-linear. Irradiance and temperature have nonlinear impact on the open circuit voltage. n=f(V_oc,I_sc,G,FF,A,T_panel) Was reduced to the nonlinear model V_oc=f(G,〖 T〗_panel). The impact of the project consists of the characterization of electrical efficiency, depending on climatic variables.
Keywords: Efficiency, Irradiance, Photovoltaic cell.
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